![]() I have a medium post just exploring the different options. However, what part of your application does the accepting and what part does the reading and what part does the execution? You can architect your application in many ways based on your use cases. You listen on an address-port pair, connection attempts to that address and port will get added to an accept queue The application accepts connections from the queue and start reading the data stream sent on the connection. In this video I discuss how bad is this.Ĭreating a listener on the backend application that accepts connections is simple. Host key for has changed and you have requested strict checking. Please contact your system administrator.Īdd correct host key in ~/.ssh/known_hosts to get rid of this message. SHA256:uNiVztksCsDhcc0u9e8BujQXVUpKZIDTMczCvj3tD2s. The fingerprint for the RSA key sent by the remote host is It is also possible that a host key has just been changed. Someone could be eavesdropping on you right now (man-in-the-middle attack)! ![]() GitHub Accidentally Exposed their SSH RSA Private key, this is the message you will get WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY! ![]() In this video I explain this in details and go through details on how postgres provide so many options to fine tune fsyncġ5:00 What options does Postgres exposes? Some SSDs however don't do that because they don't trust the host and no-op the fsync. However when the disk controller receives this flush command it is required to immediately persist all of the data to the NAND cells. Regular writes that make it to the disk controller are often placed in the SSD local cache to accumulate more writes before getting flushed to the NAND cells. It is indeed an expensive operation but required for durability especially for database systems. Fsync is a linux system call that flushes all pages and metadata for a given file to the disk. ![]()
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